When most people think about investing, they picture the stock market, bonds, and maybe a savings account. These are the traditional building blocks of a portfolio: stocks (ownership in a company), bonds (a loan to a company or government), and cash. They're common, relatively easy to understand, and widely accessible.

Alternative investments are, simply, everything else. Think of it like food. The traditional investments are your staples: bread, rice, and potatoes. Alternative investments are all the other ingredients you can use, from exotic spices to rare truffles. They're not part of the everyday financial diet for most, but they offer different flavors and opportunities.

The world of alternatives is vast and varied. It includes tangible things you can touch, complex financial strategies, and even pieces of culture. Here are some of the major categories:

• Real Estate: Investing in physical property, from apartment buildings to office parks.
• Commodities: Raw materials like gold, oil, and agricultural products.
• Private Equity: Investing in private companies that aren't listed on public stock exchanges.
• Hedge Funds: Pooled funds that use complex strategies and investments to try and achieve high returns.
• Collectibles: Items that hold value due to their rarity and demand, such as art, vintage cars, or rare wines.

Alternative investments behave differently than traditional ones. One of their key characteristics is a lower correlation with the stock and bond markets. Correlation is just a fancy way of saying two things move together. When stocks and bonds have a high correlation, a bad day for the stock market is often a bad day for bonds, too.

Alternatives often dance to their own beat.

The value of a barrel of oil or a piece of fine art doesn't necessarily rise or fall with the S&P 500. This low correlation is a big reason why some investors use alternatives to diversify their portfolios. The goal is to smooth out the ride, so that if one part of your portfolio is down, another part might be stable or even up.

Because they are less common, these investments can also offer the potential for higher returns. However, they come with their own unique set of risks. For example, it's much harder to sell a building or a rare painting quickly than it is to sell a share of stock. This is known as illiquidity. Their complexity and lower transparency also set them apart from traditional assets.

Now, let's test your understanding of these foundational concepts.

Understanding the basic landscape of investing, from traditional assets to the broad world of alternatives, is the first step toward building a well-rounded financial strategy.